78RB12 Grayhill Inc, 78RB12 Datasheet - Page 2
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78RB12
Manufacturer Part Number
78RB12
Description
SWITCH 12 POS DIP RECESSED UNSLD
Manufacturer
Grayhill Inc
Series
78r
Specifications of 78RB12
Circuit
SPST
Number Of Positions
12
Contact Rating @ Voltage
0.15A @ 30VDC
Actuator Type
Standard
Actuator Level
Recessed
Mounting Type
Through Hole
Orientation
Top Actuated
Washable
No
Contact Configuration
SPCO
No. Of Switch Positions
12
Actuator Style
Recessed Slide
Pitch Spacing
2.54mm
Contact Current Dc Max
150mA
Circuitry
SPST-CO
Contact Current Max
150mA
Peak Reflow Compatible (260 C)
No
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
GH1261
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Mechanical Ratings
Vibration Resistance: per Method 204, Test
Condition B, 1 mS opening (10 mS allowed)
Mechanical Shock: per Method 213, Test
Condition A. 1 mS opening (10 mS allowed)
Thermal Shock Resistance: per specification;
no failures; passes contact resistance.
Terminal Strength: per specification
Thermal Aging: 1,000 hours at 85°C; no failures.
Environmental Ratings
Meets all requirements of MIL- S-83504.**
spec is listed in parentheses.
Moisture Resistance: per MIL-STD-202,
Method 106.
SpeCIFICATIOnS: Standard Styles
WAVe SOLDeRInG: 260°C maximum solder temperature for 5 seconds max.
** note: 100% matte tin terminal plating does not meet MIL-S-83504 for lead content.
Where Grayhill performance is superior, the MIL
Ratings
Mechanical Life: Operations per switch position
Make-and-break Current Rating: Operations
per switch position at these resistive loads
1 mA, 5 Vdc; 50 mA, 30 Vdc; or 150 mA, 30 Vdc:
10 mA, 30 Vdc; or 10 mA, 50 mVdc:
10 mA, 50 mVdc; or 25 mA, 24 Vdc; or 100 mA, 6 Vdc:
Contact Resistance: Initially:
After life, at 10 mA, 50 mVdc, open circuit:
Insulation Resistance:
Minimum, at 100 Vdc between adjacent closed
contacts and also across open switch contacts
Dielectric Strength: Minimum voltage (AC,
RMS) measured between adjacent closed
contacts and also across open switch contacts.
Current Carry Rating: Maximum rise of 20°C
Switch Capacitance: At 1 megahertz
Operating Temperature Range:
Storage Temperature Range:
Initially (Mohms):
After life (Mohms):
lnitially:
After life:
Reflow Soldering
profile:
(260°C
peak Temperature)
Recommended Soldering Conditions:
Soldering Information
Series 90 MIDIp and Series 76 recessed rocker
(76RSB style) sealed switches have been tested
to eIA Standard RS-448-2. Similar performance
can be expected from other sealed Series 76
and 78 DIp switches.
Solderability: per MIL-STD-202, Method 208
Resistance to Soldering Heat: 76RSB:
passes eIA Standard using two, four, and six
second soldering time. 90: per MIL-S-83504,
six second test.
Fluxing: per eIA RS-448-2 with flux touching
switch body.
Cleaning: 76, 78 and 90 series tape sealed
products: passes immersion test using water/
detergent. Acceptable solutions include 1-1-1
trichlorethane, freon, (TF, Te, or TMS), isopropyl
alcohol, detergent (140°F maximum). Terpene
acceptable for Series 90 only. Solutions which are
not recommended include acetone, methylene
chloride, freon TMC.
-40°C to + 85°C
-55°C to + 85°C
≤ 100 mΩ
≤ 30 mΩ
750 V
500 V
2,000
2,000
5,000
1,000
2 pF
5 A
76
—
—
-40°C to + 85°C
-55°C to + 85°C
Thru-Hole DIP Switches
≤ 100 mΩ
≤ 30 mΩ
750 V
500 V
2,000
2,000
5,000
1,000
2 pF
4 A
78
—
—
Materials and Finishes
Shorting Member (Ball): Brass, gold-plated
over nickel barrier.
Base Contacts: Copper alloy, gold-plated
over nickel barrier.
Terminals: Copper alloy, matte tin plated over
nickel barrier.
Non-Conductive Parts: Thermoplastic
(UL94V-O)
Potting Material: epoxy, 76,78 only.
Protective Cover: 76,78, only-polycarbonate.
Tape Seal:
76, 78:
90:
Tape Seal Integrity: passes gross leak test
using 125°C flourinert for 20 seconds minimum.
Reference MIL-STD-202, Method 112.
-40°C to + 85°C
-55°C to + 85°C
polyester film
polyimide film
≤ 100 mΩ
≤ 20 mΩ
500 V
2,000
2,000
2,000
5,000
1,000
500 V
90B
2 pF
3 A
—
DIp
14